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Chemistry
Chemistry
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1
What term refers to anything that occupies space & exists in a solid, liquid, gas:
compound
matter
organic
element
2
All matter exists in one of three different physical forms: solid, liquid, and:
energy
atom
gas
water
3
Pure water with a pH of seven is considered to be:
alkaline
neutral
matter
acidic
4
When a substance gains oxygen, the substance is:
reduced
oxidized
5
The separating of a substance into ions is known as:
ionization
decomposition
6
Liquids that mix easily are known as:
miscible
immiscible
7
Glitter Nail polish is an unstable physical mixture of undissolved particles in a liquid, which is known as:
solution
suspension
8
Product with a pH of 2 is considered:
alkaline
base
acidic
neutral
9
products with a pH of 8.9 is considered:
neutral
acidic
alkaline
10
When two or more atoms are joined together chemically, a(n) ______ is created.
atom
molecule
11
What is made when hot chocolate is dissolved in water?
solution
suspension
12
The tail of a surfactant molecule is , _____ meaning oil-loving.
lipophobic
lipophilic
13
What is the average pH of hair, skin & nails?
7.5-8.5
4.5-5.5
7
4-5
14
In a solution like salt water, the substance that gets dissolved is the:
solute
solvent
15
A chemical reaction when hydrogen is added to a substance is called a(n):
reduction
oxidation
16
Redox is also known as:
oxidation-reduction
organic reaction
17
Another name for alkalis is:
bases
metals
18
Organic chemistry is the study of all substances containing:
nitrogen
carbon
hydrogen
sulfur
19
In a solution, the liquid used to dissolve a substance is called the:
solvent
solution
20
Substances that act as a bridge to allow oil and water to mix or emulsify are:
solution
surfactants
21
The branch of chemistry that deals with products without carbon is called:
organic
inorganic
22
A mixture of two or more substances that are united with the aid of a binder (emulsifer) is a(n):
emulsion
solution
ointment
suspension
23
The head of a surfactant molecule is , _____ meaning water-loving.
hydrophilic
hydrophobic
24
Only products that contain ____ can have a pH.
alcohol
hydrogen
water
carbon
25
What is the basic unit of matter that cannot be divided into a simpler form?
neuron
electron
atom
proton
26
What type of change occurs when ice melts and becomes water?
chemical change
physical change
27
Liquids that do not mix well together are known as:
miscible
immiscible
28
When wood burns and turns to ashes that is a:
chemical change
physical change
29
What is known as the universal solvent?
pop
water
alcohol
tea
30
What type of molecule formed by chemically combining two or more atoms of DIFFERENT elements is known as a(n):
compound
elemental
31
Everything known to exist in the universe is either made of matter or ____, which does not occupy space or have mass.
water
chemicals
energy
molecules
32
Substances that cannot be reduced to simpler substances are called:
elements
gases
bases
solutes